Malicious PDF — malware analysis report

Static analysis result for SHA-256 941f0665eac19959…

MALICIOUS

PDF

74.6 KB Created: 2021-09-13 07:25:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: ce4c55b3fd1caa284f0d84fe66bfb0c6 SHA-1: cc08fc2bd781543dfb061daa6204b9ed56a0aa48 SHA-256: 941f0665eac19959c7a25d486df4e313522604b897b4fc2d5422e12c0c958cd5
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://everestart.com/images/stories/file/47430953111.pdf In PDF document text
    • https://allianztc.ro/files/file/92201163969.pdfIn PDF document text
    • https://hotelritariccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/16139b8510ff44---7066077393.pdfIn PDF document text
    • http://booklandbooks.com/userfiles/file/88436924794.pdfIn PDF document text
    • http://gennarimaq.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16133293caaaab---fapobidefutuxowaga.pdfIn PDF document text
    • http://gernano.eu/gfx/userfiles/files/11088292839.pdfIn PDF document text
    • https://www.tctnanotech.com/wp-content/plugins/super-forms/uploads/php/files/0be919f410577484acdfd26240f6f031/4045122619.pdfIn PDF document text
    • http://sbkf.org/files/files/52077036713.pdfIn PDF document text
    • http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161351cc91c162---venenata.pdfIn PDF document text
    • http://pho32shabu.com/uploads/files/sodinisegigofer.pdfIn PDF document text
    • http://richmore.kr/uploadfile/fckeditor/file/37896104214.pdfIn PDF document text
    • https://www.koreayokogawa.com/ckfinder/userfiles/files/22706466706.pdfIn PDF document text
    • https://bhandarisurgical.com/ckfinder/userfiles/files/49806111737.pdfIn PDF document text
    • http://buzmakov-ua.ru/admin/ckfinder/userfiles/files/mefolaradenokag.pdfIn PDF document text
    • https://ms02bet.com/contents/files/rakezutebonol.pdfIn PDF document text
    • http://swhwsolution.it/ckeditor-ckfinder-integration/uploads/files/7210998885.pdfIn PDF document text
    • http://kashima.cc/userfiles/file/70034381048.pdfIn PDF document text
    • http://www.pacautomarketing.com/file/melatebazumepajemuvezinu.pdfIn PDF document text
    • http://rfaaa.com/UploadFile/file/20210911055331369.pdfIn PDF document text
    • http://triumphtoday.org/wp-content/plugins/formcraft/file-upload/server/content/files/16139aa0a43625---96578095137.pdfIn PDF document text
    • http://togul.org/sites/default/files/file/dapoxekus.pdfIn PDF document text
    • http://jcon-aps.dk/userfiles/file/81712061316.pdfIn PDF document text
    • http://sake2metustin.com/uploads/files/70673745889.pdfIn PDF document text
    • http://polletnv.be/uploads/files/6659081099.pdfIn PDF document text
    • http://losmarinoslanzarote.com/marinarubicon/admin/file/34361865240.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=how+to+check+sensors+in+androidPDF link annotation
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c0fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC0FD 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000d914.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD914 10592 bytes
SHA-256: 64f3434d593e383125326c2b677d523e463b5f57a5ce052cf7b1ad27d513137e
font_02_sfnt_off0000f140.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF140 16892 bytes
SHA-256: 6f9b76a46e111ff5461684c7ff2676ba6b5e5f93b6527abf3993ee50c3b8c890